Window-curtain fixture



PATENT OFFICE.

PURCIAIES MILES, OF IW BRITAIN, CONNECTICUT.

WINDOW-CURTAIN FIXTURE.

specication of Letters Patent No. 24,479, dated June 2.1, 1859.

To all whom it may concern:

Be it known that I, PURCHES MILES, of N ew Britain, county of Hartford,and State of Connecticut, have invented new and useful Improvements inFixtures for Window-l Curtains, of which the following is a full andcorrect description, reference being had to the drawings herein referredto, making a part thereof, in which* Figure l represents an interior andface view of a framing for holding the pulley of the curtain roller,together with the bracket to which it is hinged. Fig. 2 represents afront view of the curtain, roller, and lixtures for sustaining,elevating and lowering the curtain. Fig. 3, represents a front view ofthe pulley frame and bracket, and Fig. 4, is a front view of thefixtures at the end of the roller opposite to the pulley.

The same letters designate the same parts in all the figures.

Where inner blinds are used on windows, and in some other cases, it isimportant that the curtain roller should be so hung that it can be swungup out of the way for the purpose of allowing the blinds to be openedand closed or for other purposes-and further, when, in use, the rolleris thus, from time to time, elevated and depressed, the lower pulley,generally resorted to for tightening the band or cord which operates theroller for raising and lowering the curtain, cannot be used, as it wouldnot permit the roller to be raised, and even if the lower pulley shouldbe so arranged as to allow the roller to rise and fall, the cord or bandfrom contraction and expansion, as proved by universal experience, isconstantly becoming too tight or too loose, to properly hold, elevateand lower the curtain.

My improvements are intended to allow the roller to be swung up and letdown as occasion may require, and to dispense with the lower pulleyentirely, while securing the most efficient action of an endless bandand pulley in elevating and depressing the curtain and holding it lirmlyat any desired height.

I make the fixture, or compound bracket in two parts A and B, the upperpart A is to be attached to the window frame, and the lower part B is tobe so hinged or jointed thereto, as to be swung upward and forward asdesired. The lower part B I perforate as at o for the reception of thejournal of the pulley, each part of the bracket is made in such form asto present the same appearance whether placed at the one or the otherside of the window. A t the upper end of this upper or lixed part, thereis a flange bent at right angles to the length thereof with a slittherein of proper width for the reception of the shank of a screw, andin the face of the same part there are two openings for screws so` thatthe permanent or upper part of the bracket can be screwed to the top ofthe window frame or at its side or back, and at either side of thewindouT without disturbing t-he position of the lower and pendent partof the bracket which holds the pulley, or interfering with the swingingmotion thereof. The fixtures at the other end of the roller are the sameas those already described, the only difference being, that the lowerpart at the pulleyend, has devices to be described for holding thepulley and band.

The journal of the pulley enters the aperture o prepared for it asdescribed; an endless band is placed upon the pulley extending down farenough to be conveniently reached, and the "pulley is further supportedby an arm or arms a, a, which lit the pulley for some distance with theband between the pulley and the arms, the pulley and arms pressing theband between them. The surface of the pulley should consist of somesubstance, emery for example, over which the band will not easily slip.At the lowest points where the arms begin to hold the band upon thepulley, flanges should be placed on the arms as shown at f, f, toprevent end play of the pulley, and prevent the band from slippingoff-lianges o-n the ends of the pulley, with the arms placed between,would answer the same purpose.

It is preferable to place the arms in such position as shown so as tobring the pendent parts of the band much nearer together than thediameter of the pulley, but this is not absolutely essential, and it isobvious that one arm extending a considerable -distance upon the surfaceof the band and pulley with an opening below to allow the band to cometo and from the pulley would answer the same purpose as the two arms Ihave represented and would not change the principle of action.

I prefer spring arms located and arranged substantially as represented,so that they will press the pulley upward against the journal bearing toproduce friction for holding the curtain at any desired height, and berelieved when force is applied downward on the band or curtain forraising 0r lower ing the same, but this is not indispensable. I preferalso that the arms should, as shown7 hold the band against the surfaceof the pulley for a considerable portion of its circumference, but thisis not absolutely necessary. A Y

It will readily be perceived that if the pulley have a friction surfaceon which the belt cannot easily slip, and the band yis held in Contacttherewith as set forth and guided to it as shown, the band will adhereto the pulley without the aid of a lower pulley, or eyelets and points,and will operate the eurtain with ease and certainty.

Having thus fully described my improveset forth.

PU'RCI-IES MILES. Witnesses:

W. I). N. FITZGERALD Con. R. DisoRWAY.

